#define _CRT_SECURE_NO_WARNINGS 1
#include <stdio.h>
int main()
{
    int weight = 0;
    double height = 0;
    double bmi = 0.0;
    scanf("%d %f", &weight,&height);
    height = height / 100;
    bmi =(weight / (height * height));
    printf("%.2f", bmi);
    return 0;
}